The Mark I tank was my favorite armored vehicle as a child (is that a thing with young children?). Born of the need to break the domination of trenches and machine guns over the battlefields of the Western Front, it was the first vehicle to be named “tank”, as an expedient to maintain secrecy and to disguise its true purpose. It was developed to be able to cross trenches, resist small-arms fire, travel over difficult terrain, carry supplies, and to capture fortified enemy positions. It is regarded as successful in many respects, but suffered from many problems owing to its primitive nature.

These armoured behemoths were thirty two feet long, weighed twenty eight tons and could reach a maximum speed of four miles per hour. They were powered by a 105hp hand-cranked Daimler engine and had a crew complement of eight. It took four of them just to turn the starting handle. It also took four men to drive it. The driver and tank commander sat up front in a small cabin. Each tank track was also controlled by separate secondary gears, manned by two gearsmen at the rear. The other four crew were gunners and loaders.